Home / 305,921.90-458,835.44-156,272.78

Finding the Fourth Proportional to 305,921.90, 458,835.44 and 156,272.78

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Solution

The fourth proportional to 305,921.90, 458,835.44 and 156,272.78 is: 234,384.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,921.90 : 458,835.44 = 156,272.78 : x
  2. Step 2: Convert to fraction form
    305,921.90/458,835.44 = 156,272.78/x
  3. Step 3: Cross multiply
    305,921.90x = 458,835.44 × 156,272.78
  4. Step 4: Simplify right side
    305,921.90x = 71,703,490,137.05
  5. Step 5: Solve for x
    x = 71,703,490,137.05/305,921.90
  6. Step 6: Final answer
    x = 234,384.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.